叩擊（聲）；敲擊（聲）；拍擊（聲）[（+on/at）]I was about to go to bed when I heard a rap at the door. 我正要上床睡覺時聽到了敲門聲。
vt.
叩擊；敲擊；拍擊She rapped him over the knuckles with her fan. 她用扇子打他的手指關節。
vi.
敲擊；拍擊[（+on/at）]He would rap at the desk when he had difficulty working out a math problem. 他做數學題遇到困難時往往要敲書桌。The chairman rapped on the table for order. 主席拍拍桌子讓大家安靜。
